Home / 327,009,806.11-490,110,799.38-280,625,635.63

Finding the Fourth Proportional to 327,009,806.11, 490,110,799.38 and 280,625,635.63

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Solution

The fourth proportional to 327,009,806.11, 490,110,799.38 and 280,625,635.63 is: 420,591,835.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,009,806.11 : 490,110,799.38 = 280,625,635.63 : x
  2. Step 2: Convert to fraction form
    327,009,806.11/490,110,799.38 = 280,625,635.63/x
  3. Step 3: Cross multiply
    327,009,806.11x = 490,110,799.38 × 280,625,635.63
  4. Step 4: Simplify right side
    327,009,806.11x = 137,537,654,605,139,904
  5. Step 5: Solve for x
    x = 137,537,654,605,139,904/327,009,806.11
  6. Step 6: Final answer
    x = 420,591,835.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.